vmp2
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vmprofiler-qt
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still working on it, just cleaned the code some more...

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merge-requests/1/head
_xeroxz 4 years ago
parent 6e8bf93445
commit 2d16994d54
4 changed files with 86 additions and 30 deletions
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6
src/DarkStyle/framelesswindow/framelesswindow.ui
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@ -6,8 +6,8 @@
<rect>
<x>0</x>
<y>0</y>
<width>1410</width>
<height>1048</height>
<width>1484</width>
<height>983</height>
</rect>
</property>
<property name="windowTitle">
@ -143,7 +143,7 @@
color:rgb(153,153,153);</string>
</property>
<property name="text">
<string>VMProtect 2 - Virtual Instruction Inspector (v1.5)</string>
<string>VMProtect 2 - Virtual Instruction Inspector (v1.6 BETA)</string>
</property>
<property name="alignment">
<set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>

107
src/qvminspector.cpp
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@ -3,9 +3,9 @@
qvminspector_t::qvminspector_t( qwidget_t *parent ) : qmain_window_t( parent ), file_header( nullptr ), vmctx( nullptr )
{
ui.setupUi( this );
ui.virt_instrs->setColumnWidth( 0, 100 );
ui.virt_instrs->setColumnWidth( 1, 125 );
ui.virt_instrs->setColumnWidth( 2, 250 );
ui.virt_instrs->setColumnWidth( 0, 115 );
ui.virt_instrs->setColumnWidth( 1, 140 );
ui.virt_instrs->setColumnWidth( 2, 200 );
ui.virt_instrs->setColumnWidth( 3, 200 );
connect( ui.action_open, &QAction::triggered, this, &qvminspector_t::on_open );
@ -55,7 +55,7 @@ void qvminspector_t::on_open()
qfile_t open_file( file_path );
file_header = reinterpret_cast< vmp2::v3::file_header * >( malloc( file_size ) );
dbg_msg( QString( "loading vmp2 file %1..." ).arg( file_path ) );
dbg_msg( qstring_t( "loading vmp2 file %1..." ).arg( file_path ) );
if ( !open_file.open( QIODevice::ReadOnly ) )
{
@ -81,9 +81,9 @@ void qvminspector_t::dbg_print( qstring_t dbg_output )
void qvminspector_t::dbg_msg( qstring_t dbg_output )
{
QMessageBox MsgBox;
MsgBox.setText( dbg_output );
MsgBox.exec();
qmsg_box_t msg_box;
msg_box.setText( dbg_output );
msg_box.exec();
dbg_print( dbg_output );
}
@ -91,12 +91,12 @@ bool qvminspector_t::init_data()
{
if ( file_header->magic != VMP_MAGIC )
{
dbg_msg( "invalid magic bytes for vmp2 file...\n" );
dbg_msg( "invalid magic bytes for vmp2 file..." );
return false;
}
dbg_print( "valid magic bytes for vmp2 file...\n" );
dbg_print( "valid magic bytes for vmp2 file..." );
if ( file_header->version != vmp2::version_t::v3 )
{
@ -111,36 +111,91 @@ bool qvminspector_t::init_data()
module_base = reinterpret_cast< std::uintptr_t >( file_header ) + file_header->module_offset;
vmctx = new vm::ctx_t( module_base, image_base, image_base, vm_entry_rva );
if ( !vmctx->init() )
{
dbg_msg( "failed to init vm::ctx_t... this can happen for many reasons..."
"ensure that the vmp2 file is not corrupted...\n" );
return false;
}
first_block = reinterpret_cast< vmp2::v3::code_block_t * >( reinterpret_cast< std::uintptr_t >( file_header ) +
file_header->code_block_offset );
dbg_print( "> vm entry displayed below...\n" );
vm::util::print( vmctx->vm_entry );
return true;
}
void qvminspector_t::update_ui()
{
const auto end_code_blocks = reinterpret_cast< std::uintptr_t >( first_block ) +
( file_header->code_block_count * sizeof vmp2::v3::code_block_t ) +
file_header->module_size + sizeof vmp2::v3::file_header;
// for each code block insert their virtual instructions
// into the virtual instruction tree... also put meta data about the code
// block above the virtual instructions... if the code block has a JCC (with two branches)
// then make a child repeating this for loop...
for ( auto [ code_block, idx ] = std::tuple{ first_block, 0u }; idx < file_header->code_block_count;
for ( auto [ code_block, code_block_num ] = std::tuple{ first_block, 0u };
code_block_num < file_header->code_block_count;
code_block = reinterpret_cast< vmp2::v3::code_block_t * >( reinterpret_cast< std::uintptr_t >( code_block ) +
code_block->next_block_offset ), ++idx)
code_block->next_block_offset ),
++code_block_num )
{
auto blank_entry1 = new qtree_widget_item_t(), blank_entry2 = new qtree_widget_item_t(),
meta_data_entry = new qtree_widget_item_t();
dbg_msg( QString( "> number of vinstrs = %1...\n" ).arg( code_block->vinstr_count ) );
// ui.virt_instrs->addTopLevelItem( blank_entry1 );
// meta_data_entry->setText()
dbg_print( qstring_t( "> code block %1 (block_%2), number of vinstrs = %3..." )
.arg( code_block_num )
.arg( ( code_block->vip_begin - file_header->module_base ) + file_header->image_base, 0, 16 )
.arg( code_block->vinstr_count ) );
// for each virtual instruction inside of this code block...
for ( auto idx = 0u; idx < code_block->vinstr_count; ++idx )
{
const auto virt_instr = &code_block->vinstr[ idx ];
const auto profile = vm::handler::get_profile( virt_instr->mnemonic_t );
auto virt_instr_entry = new qtree_widget_item_t;
// virtual instruction image base'ed rva... (column 1)...
virt_instr_entry->setText( 0, qstring_t::number( ( virt_instr->trace_data.vip - file_header->module_base ) +
file_header->image_base,
16 ) );
// virtual instruction operand bytes... (column 2)...
qstring_t operand_bytes;
operand_bytes.append( QString( "%1" ).arg( virt_instr->opcode, 0, 16 ) );
// if virt instruction has an imm... grab its bytes...
if ( virt_instr->operand.has_imm )
{
operand_bytes.append( " - " );
for ( auto _idx = 0u; _idx < virt_instr->operand.imm.imm_size / 8; ++_idx )
operand_bytes.append( QString( "%1 " ).arg(
reinterpret_cast< std::uint8_t * >( &virt_instr->operand.imm.u )[ _idx ], 0, 16 ) );
}
virt_instr_entry->setText( 1, operand_bytes );
// virtual instruction string, includes imm... (colume 3)...
QString decoded_instr( QString( "%1" ).arg(
profile ? profile->name : QString( "UNK(%1)" ).arg( virt_instr->opcode, 0, 16 ) ) );
if ( virt_instr->operand.has_imm ) // if there is a second operand (imm) put its value...
decoded_instr.append( QString( " %1" ).arg( virt_instr->operand.imm.u, 0, 16 ) );
virt_instr_entry->setText( 2, decoded_instr );
// add comments to the virtual instruction... (colume 4)...
if ( virt_instr->mnemonic_t == vm::handler::LREGQ || virt_instr->mnemonic_t == vm::handler::SREGQ )
virt_instr_entry->setText( 3, QString( "; vreg%1..." )
.arg( virt_instr->operand.imm.u ? ( virt_instr->operand.imm.u / 8 ) -
1 /* zero based vreg... */
: 0u ) );
if ( virt_instr->mnemonic_t == vm::handler::JMP && code_block->jcc.has_jcc )
virt_instr_entry->setText(
3,
QString( "; { %1, %2 }" )
.arg( ( code_block->jcc.block_addr[ 0 ] - file_header->module_base ) + file_header->image_base,
0, 16 )
.arg( ( code_block->jcc.block_addr[ 1 ] - file_header->module_base ) + file_header->image_base,
0, 16 ) );
ui.virt_instrs->addTopLevelItem( virt_instr_entry );
}
}
}

1
src/qvminspector.h
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@ -17,6 +17,7 @@ using qwidget_t = QWidget;
using qstring_t = QString;
using qfile_t = QFile;
using qtree_widget_item_t = QTreeWidgetItem;
using qmsg_box_t = QMessageBox;
class qvminspector_t : public qmain_window_t
{

2
src/qvminspector.ui
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@ -57,7 +57,7 @@
<item>
<widget class="QTreeWidget" name="virt_instrs">
<attribute name="headerDefaultSectionSize">
<number>120</number>
<number>160</number>
</attribute>
<column>
<property name="text">

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